1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4697:2012Aerospace series Generaland installation requirementsfor passenger seat fittingsCopyright European Committee for Standardization Provided by IHS under license with
2、 CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4697:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4697:2012.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fastene
3、rs and fastening systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012.
4、Published by BSI StandardsLimited 2012ISBN 978 0 580 77306 8ICS 49.095Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2012.Amendments issued since publicati
5、onDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4697:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4697 May 2012 ICS 49.095 English Version A
6、erospace series - General and installation requirements for passenger seat fittings Srie arospatiale - Exigences gnrales et dinstallation pour sige passager Luft- und Raumfahrt - Allgemeine und Einbau Anforderungen an Fittinge von Passagiersitzen This European Standard was approved by CEN on 25 Febr
7、uary 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be ob
8、tained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the
9、CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
10、g, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All
11、rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4697:2012: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 469
12、7:2012EN 4697:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Abbreviations .54 Requirements .54.1 General 54.2 Interface 84.3 Installation Requirements 104.4 Performance and Safety . 124.5 Stress requirements . 144.5.1 Static requirements 144.5.2 Dynamic requirements (rear fit
13、ting only) . 164.6 Environmental requirements . 214.7 Additional requirements 215 Qualification 21Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4697:2012EN 4697:2012 (E)
14、3 Foreword This document (EN 4697:2012) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associ
15、ations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2012, and conflicting national standards
16、 shall be withdrawn at the latest by November 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Inter
17、nal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxemb
18、ourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license fro
19、m IHS-,-,-BS EN 4697:2012EN 4697:2012 (E) 4 1 Scope This European Standard specifies the installation and removal requirements and the space envelopes for passenger seat fittings on aircraft. The purpose is to reduce the installation time and the tooling required for seat installation by standardizi
20、ng the seat attachment fasteners (fittings). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of
21、 the referenced document (including any amendments) applies. EN 9100, Aerospace series Quality Management Systems Requirements for Aviation, Space and Defence Organizations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts AMS 1424J, Aircraft D
22、eicing/Anti-icing Fluids 1)AMS 1428F, Fluid, Aircraft De-icing/Anti-Icing, Non-Newtonian, (Pseudoplastic)1)AMS 1550B, Cleaner, Water Base, Aircraft Interior Hard Surface Materials 1)AMS 1630C, Cleaner, Carpet, Shampoo Type 1)AMS 1631C, Cleaner, Carpet Water Extraction Type 1)AS8049B, Performance Sta
23、ndard for Seats in Civil Rotorcraft, Transport Aircraft and General Aviation A/C 1)CS-25 Amendment 5, 5 September 2008, Certification Specification for Large Aeroplanes 2)FAR 25 Amendment 127, 28 October 2008, Airworthiness Standards: Transportation Category Airplanes 3)RTCA DO-160F 6 December 2007,
24、 Environmental Conditions and Test Procedures for Airborne Equipment 4)1) Published by: SAE National (US) Society of Automotive Engineers http:/www.sae.org/ 2) Published by: European Aviation Safety Agency (EASA), Postfach 101253, D-50452 Koeln, Germany 3) Published by: FAA National (US) Federal Avi
25、ation Administration http:/www.faa.gov/ 4) Published by: Radio Technical Commission for Aeronautics (RTCA), 1828 L Street, NW, Suite 805 Washington, DC 20036, USA Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permit
26、ted without license from IHS-,-,-BS EN 4697:2012EN 4697:2012 (E) 5 3 Abbreviations For the purposes of this standard, the following abbreviations apply. A/C Aircraft. Acc. According. Fwd Forward. SLD Shear Locking Device. 4 Requirements 4.1 General The fitting design shall fit within the given space
27、 envelope, according to Figure 1 and Figure 6. Key 1 Monument 2 Fitting body 3 Carpet 4 Floor panel 5 Seat rail 6 Raceway Figure 1 Fitting environment 1 All fittings attached to seat legs shall be pre-set to the correct seat track dimensions with fine adjustment of the fitting during installation no
28、t being necessary. Minimum front to rear fitting distance shall be 482,6 mm (19”) between the extreme studs of each fitting. Figure 2 Aircraft Coordinate System Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitte
29、d without license from IHS-,-,-BS EN 4697:2012EN 4697:2012 (E) 6 The front attachment fasteners shall cover the tolerances in X-direction (see Figure 2) that might occur due to installation tolerances (of the seat leg and of the A/C structure). The fitting weight shall be according to Table 1. Table
30、 1 Fitting classes Fitting class Fitting Weight g A Rear triple stud fitting 150 B 250 C Rear quadruple stud fitting 200 D 290 E Forward single stud fitting 50 F 90 Maintenance or repair work on the seat track shall be taken into account during fitting design. Details see Figure 3. Dimensions in mil
31、limetres Figure 3a Seat track top view Figure 3b Seat track 3 D view continued Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4697:2012EN 4697:2012 (E) 7 Figure 3c Damage
32、repair cross section 1 Figure 3d Damage repair cross section 2 Figure 3e Damage repair top view Key 1 If the amount of material removed on one side of a seat track exceeds 0,3 mm (0.012 inch) maximum in depth, it is necessary to remove the same amount from the other side, so that a level surface is
33、achieved 2 Minimum remaining thickness after rework 3 Maximum rework depth as reference to nominal thickness Figure 3 Seat track allowable damage limits and repair solutions The fitting design shall show no evidence of any movement/rattling of the fitting-track combination. A continuous load path sh
34、all be ensured at all times. A shear-locking device should only be incorporated in the rear fitting. Fitting design and performance shall be validated incorporating the fitting-seat combination. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo r
35、eproduction or networking permitted without license from IHS-,-,-BS EN 4697:2012EN 4697:2012 (E) 8 4.2 Interface The fitting shall be compatible with the standard seat track concept, see Figure 4 and detail. Dimension A Tolerance of 0,1 mm (0.004 inch) on 1 pitch Tolerance of 0,5 mm (0.020 inch) on
36、100 pitches Figure 4 Seat rail top view Detailed seat rail dimensions, see Table 2. Figure 5 Seat rail cross section Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4697:20
37、12EN 4697:2012 (E) 9 Table 2 Seat rail dimensions Dimensions in millimetres (in inches) A B C D E H R1R2R3min. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max. 25,3 25,5 19,7 20,0 10,7 11,0 20,5 21,0 7,8 8,0 2,3 2,7 13,75 14,25 0 1,0 0,8 1,8 Full 1.0040.9960.7870.
38、7760.4330.4210.8270.8070.3150.3070.1060.0910.03900.0710.031Full NOTE 1 Diameter B and slot centerline D shall be coincident with slot centerline C to within 0,13 mm (0.005 inch). NOTE 2 All faces shall be within 0,5 of the specified position relative to the upper surface of the rail. The fitting sha
39、ll be compatible with the currently marketed seat concepts. Therefore several clevis positions of the fitting should be available. The rear fitting shall have dimensions according to Figure 6 and Figure 7 and a compact design without any sharp edges or corners. The front fitting shall have dimension
40、s according to Figure 8 and a compact design without any sharp edges or corners. Dimensions in millimetres Key 1 Shear pin 2 Stud 3 Fitting body Figure 6 Design example rear fitting bottom side Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo re
41、production or networking permitted without license from IHS-,-,-BS EN 4697:2012EN 4697:2012 (E) 10 Dimensions in millimetres Key 1 Bolt 2 Fitting body 3 Floor panel 4 Carpet 5 Seat rail 6 Reference only, 35 to 45 is the best angle for the load introduction Figure 7 Dimensions 2 rear fitting side vie
42、w It shall be possible to route seat-to-seat cables by/alongside/near the fitting, which in turn shall not damage or squeeze the cables when the seats are shifted inside the rail. Therefore the width shall not exceed max. 25,4 mm (max. 1 inch), according to Figure 6 and Figure 8. Particular attentio
43、n shall be paid to galvanic corrosion between seat tracks and fitting materials. The seat track fitting material shall be corrosion resistant, considering not only the potential action of water/humidity, but also fluids and materials present in the normal seat environment, as well as passenger activ
44、ity. 4.3 Installation Requirements The fitting shall be quickly lockable by one person without the need for any tools. A single tool Allen Key 3/16, or 5/16 shall be used for unlocking of the attachments fasteners. The maximum force for the locking operation shall not exceed (5 1) daN, respecting er
45、gonomic aspects. The (pure) seat installation time, comprising two (2) Fwd and two (2) aft fittings, shall not exceed one (1) minute. The last seat row may have a longer installation time due to restricted accessibility of a monument installation (e.g. Doghouses, partitions, etc.). The SLD shall not
46、 include parts that have to be disassembled or removed from the device for seat position shifting, removal and installation. The locking motions of the fitting shall not damage the seat track, floor panels or any other component and their surfaces. A clear and reliable visible indication for the SLD
47、 in locked position shall be incorporated in order to guarantee correct installation and engagement of the fitting. The SLD engagement/disengagement to the track shall be directly visible to personnel (e.g. quality inspector) standing in the longitudinal passenger aisle. Copyright European Committee
48、 for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 4697:2012EN 4697:2012 (E) 11 Unhindered access to the attachment fitting shall be considered, e.g. without the need to disassemble any parts of the seat or any adjacent components as stowages, doghouses, etc. The shifting of
